Once you install The Sims 3 you can't play the sims 2 i don't know why, it's just the way it is. Sorry
To install any sims 2 expansion packs you need to have the sims 2 installed. You cant just install sims 2 seasons for example, you need to have the sims 2 installed. It should say that on the box somewhere.
no u cant unless you uninstall the sims 2 expansion pack.
You can happily download both of these games to your Laptop if that's what you mean, the games are completely separate to each other and there is no reason why they cannot both be on your PC at the same time. If you mean once you have bought and installed the Sims 4 can you automatically play the Sims 3 then no, you will have to go out and buy the Sims 3 game separate.
yes you can
you must play freeplay
Yes you can but it has to be the last expansion you installed, for example if the last one you installed was Bon Voyage you use that disk to play.
No, it will only run with the game installed PLUS the disk in.
no, if you want to install the sims 2 you do not need the sims 1 installed.
You need to have installed the sims 2, the sims 2 deluxe, or the sims 2 double deluxe, but not all of them. You just need to have the regular sims 2 installed to install and play it.
You cant
you cant.
The Sims 3 world adventures is an expansion pack. You can only play it if you have already installed the Sims 3.